Machine for manufacturing metallic framed weather-strips



L b 8 8 h S A .w G 6 h S v 2 D M d 0 M 0 m MACHINE FOR MANUFACTURING METALLIC FRAMED WEATHER STRIPS,

Patented Feb. 18, 1896.

minim! I I all!!! 1H Janie? ma Q (No Model.)

2 Sheets-Sheet 2.

, D. W. BOSLEY. MACHINE FOR MANUFACTURING METALLIC FRAMED WEATHER STRIPS.

Patented Feb. 18, 1896.

UNITE STATES QATQENT Frrcn.

DANIEL W. BOSLEY, OF CHICAGO, ILLINOIS.

MACHINE FOR MANUFACTURING METALLIC FRAMED WEATHER-STRIPS.

I SPECIFICATION forming part of Letters Patent No. 554,907, dated February 18, 1896.

Application filed March 6, 1894.

$erial No. 502,511. (No model.)

T0 at whom it may concern.-

Be it known that I, DANIEL WV. BOSLEY, a citizen of the United States, residing at Ohicago, Illinois, have invented certain new and useful Improvements in Machines for Manufacturin g Metallic Framed lVeather'Strips, of which the following is a specification.

My invention relates especially to machines for manufacturing weather-strips having a metallic portion or frame for securing the entire strip in its desired location, and a cushion portion secured in such metallic frame.

The object of my invention is to provide a simple, economical, and efficient machine for forming ametallic frame portion of a weatherstrip and inserting therein a cushioned portion; and to that end it consists, first, in the combination of a set of forming-rolls arranged to rotate adjacent to each other and by their rotation to form a strip of metal passing through and between their contiguous sur faces into a suitable frame for holding the cushion-strip.

It consists, further, in combining a set of forming-r0lls, which, by their rotation, form a strip of metal into the desired frame, with a set of crimping-rolls arranged to crimp the metallic frame firmly upon the cushion-strip portion as the frame and cushioned portion are passed between them,and a guide for bending and inserting the cushioned portion into the frame immediately before they are passed into the crimping-roll.

It consists, further, in combining a set of forming-rolls and a set of crimping-rolls, one of such crimping-rolls being provided with a set of punches, which, during its rotation, will form indentations or perforations in the metallic frame as it is passed between such crimping-rolls, and means for transmitting the requisite power from the crimping-rolls to the forming-rolls during their rotation.

It consists, finally, in combining a set of primary rolls for partially forming the weather-strip, a set of secondary rolls for still further forming or bending the metallic strip, a set of forming-rolls for completing the formation of the metallic frame, a set of crimping-rolls for crimping the metallic frame upon the cushioned strip, and a guide for forming and insertingthe cushioned strip in the metallic frame as it enters between the crimping-rolls.

In the drawings, Figure 1 is a vertical side elevation of my complete machine; Fig. 2, an enlarged sectional detail taken on line 2 of Fig. 1; Fig. 3, an enlarged sectional detail of a set of primary rolls; Fig. 4, an enlarged sectional detail showing the shape of the sec ond set of rolls; Fig. 5, an enlarged sectional detail showing the shape of the channel between the set of forming-rolls; Fig. 6, a plan view of the guides for the strip portions, looking at it from the top; Fig. 7 an enlarged detail taken 011 line 7 of Fig. 6; Fig. 8, a sectional view of the guides, taken on line 8 of Fig. 1; and Fig. 9 an enlarged transverse section of the weather-strip, showing the cushion portion inserted in its metallic frame.

In the methods of manufacturing weatherstrips nowin use, especially those having a metallic frame portion, the frame is formed by drawing the metal strip through a set of dies and inserting the weather-strip by means of a guide into the frame portion, and passing such frame portion through a crimpingdie. This method is very slow and laborious, as the pieces must necessarily be short in length, necessitating the grasping of the forward ends of the strip at each portion, which forward end must be cut off each piece, thus creating a large amount of waste. The purpose of my invention is to obviate these objections and to lessen the labor and expense required for making this style of strip.

In constructing my improvement I use a frame A of the desired size and shape, and support it at the desired height by means of legs a, to which it may be secured or bolted in any convenient manner. Mounted upon the face of the frame, 011 suitable studs, is a set of forming-rolls B B, which have their circular faces provided with annular grooves and projections of such shape that a strip of metal passed between them during their rotation will be given the desired configuration necessary for use in weather-strip frames. (See Fig. 5.) The upper roll, B, hasits circumference provided with an annular rib I) at the bottom of an annular groove, one side of which, I), is cut to a greater depth than the opposite side, b The surfaces of these annular grooves are preferably curvilinear in shape in cross-section. The lower roll, B, is provided with a central projecting annular rib 5 which projects up into the annular groove of the upper roll, but not quite far enough to contact its central projecting rib. As the metal strip C is passed between these rolls its ends 0 and c strike the curved surface of the groove and are folded inwardly until they contact the center rib, which prevents the further folding inward and causes the surplus metal to be spread down and out, thus giving the desired shape to the metal frame.

In order to lessen the strain and wear upon the forming-rolls, I provide two sets of rolls to partially form and bend the metal strip toward the desired shape before it enters between the last set of forming or finishing rolls. The set of primary rolls D D, as shown in cross-section in Fig. 3, bend the metal strip partially into its shape, while the sec- 0nd set of rolls E E (see Fig. 4) still further bend the metal strip as it passes between them previous to entering between the forming-rolls.

I provide guides d, e, and c adjacent to the sets of forming-rolls, for the purpose of guiding and holding the metal strip steadily as it enters between the rolls. These guides have slotted openings through them of the exact size and shape of the metal strip intended to pass through them.

I provide a set of crimping-rolls G G, mounted, preferably, upon a separate standard or frame G The lower roll, G, is provided with a circumferential groove 9 and the upper with an annular projecting rib g, adapted to crimp the edge e of the metallic frame firmly down upon the ends of the cushioned portion II as the weather-strip is passed between them. The roll G is also provided with a number of punches 9 arranged at different points around its circumference and about in the center of its circumferential channel, so that during the rotation of these crimping-rolls and the metal strip passing between them these punches will make a series of indentations or perforations through the weather-strip, through which tacks may be driven to secure the weather-strip in position. To give the desired rotation to the crimping-rolls and by means of the sprockets I I and sprocket-chain I to the formingrolls, I mount the roll G upon a rotating shaft K, which has one end provided with a square shank k, to which may be secured a handle (Shown in dotted lines in Fig. 1.) The roll G is mounted upon a rotating shaft K, the rotation of which is secured by means of the pair of gears k and 70 during the rotation of the shaft K.

To give the rubber or cushioned strip II the desired form and guide it into the metal frame before it is passed between the crimping-rolls, I mount a guide L upon the same standard that the crimping-rolls are mounted upon and having its forward end inclined above the plane in which the metallic strip travels. The guide is provided with a U- shaped passage Z, into which the cushioned strip is inserted and passed on its way to meet the metallic frame. (See Fig. 6.) The opposite end of the guide is located close to a second guide M, through which the metallic frame is passed before entering the crimpin g-rolls. Both guides are arranged with special relation to each other, so that the free ends it of the cushion-strip are inserted in the opening between the curved end a and the body portion of the metal frame. I provide an adjusting-screw Z for adjusting the guide into the desired position to direct the cushioned strip into its proper relation with the metal frame.

The operation of my machine is as follows: A strip of metal is passed through the guide (I, thence through the primary set of forming-rolls, where it takes its initial shape, thence through the guide 6 and between the second set of forming-rolls, where it is still further formed, thence through the guides e and through the final set of finishing or forming rolls. Thus far a pair of ordinary pliers may be used to pull the strip. In order to pass the strip between the forming-rolls, I provide the upper roll, B, with a perforation or opening 11 into which a handle I) may be inserted, so that the roll may be rotated and the strip formed as it passes between them. The strip is fed continuously on until it onters the guide N adjacent to the forward surfaces of the crimping-rolls. The cushioned strip is now passed through the guide L and its free end inserted in the proper opening of the metal frame. The completed strip is now forced between the crimping-rolls,where the metal frame is firmly crimped upon the cushion portion. As the crimping-rolls are rotated by means of the crank and handle, the punches in the lower one not only act to provide the necessary perforations or indentations in the metal frame, but assist in drawing the weather-strip through the rolls and guides, thus facilitating the work.

The weather-strip maybe formed from con tinuous rolls of metal and cushion-strips of any desired length, and afterward cut up into lengths to form packages or bunches for sale or storage.

The advantages derived from the use of my machine are that the work can be carried on from continuous strips or rolls of the necessary material, not requiring to stop and cut off every few feet, thus saving not only labor and expense but waste of material, as well as furnishing a neat finished product.

\Vhilc I have described my invention very minutely in connection with the formation of weather-strips and the binding together of a metal frame portion with a cushioned portion, 1 do not desire to be limited thereto unduly any more than is pointed out in the claims. On the contrary, I contemplate changes in IIO form, construction, and arrangement, the omission of parts and the use of equivalents as circumstances may suggest or render eX- pedient.

I claim- 1. In Weather-strip machines, the combination of a set of forming-rolls for giving the desired configuration to the frame portion, means for inserting a cushioned strip in such frame portion, a set of crimping-rolls for securing such portions together, and means for rotating such crimping-rolls, substantially as described.

2. In weather-strip machines, the combination of a set of forming-rolls for giving the desired configuration to the metal strip as it is passed through them, means for inserting a cushioned strip in such metal frame, a set of crimping and punching rolls for securing such portions together and indenting the metal portion, and means for rotating the crimping-rolls, substantially as described.

3. In Weather-strip machines, the combination of a guide for inserting the cushionstrip in a metal frame, a set of crimping and punching rolls for securing such portions together and indenting the metal portion, and means for rotating such rolls, substantially as described.

4. In Weatherstrip machines, the combination of a set of primary rolls for partially forming the metal frame, a set of finishingrolls for completing the configuration of the metal frame as it is passed through such sets of rolls, means for inserting a cushioned strip in such metal frame, a set of crimping-rolls for securing such portions together, and means for rotating such rolls, substantially as described.

5. In Weather-strip machines, the combination of a set of primary rolls for partially forming the metal frame, a set of finishingrolls for completing the configuration of the metal frame as it is passed through such sets of rolls, means for inserting a cushioned strip in such metal frame, a set of crimping and punching rolls for securing such portions together and indenting the metal frame, and means for rotating such rolls, substantially as described.

6. In Weather-strip machines, the combination of a set of primary rolls for partially forming a metal strip passed therethrough, a guide adjacent to such rolls, a second set of rolls for further forming a metal strip, a second guide adjacent to such rolls, a set of finishing-rolls for completing the configuration of the metal frame, a guide adjacent to such rolls, a guide for inserting such cushioned portion in a metallic frame, a set of crimping and punching rolls for securing such portions together and indenting the metal frame, and means for rotating the rolls, substantially as described.

DANIEL W. BOSLEY. Witnesses:

EDWARD F. BosLEY, THOMAS F. SHERIDAN. 

